Medium severity · published May 31, 2022
CVE-2022-29243
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform
4.3
CVSS
1.6%
EPSS
No
On KEV
Description
Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 22.2.7 and 23.0.4, missing input-size validation of new session names allows users to create app passwords with long names. These long names are then loaded into memory on usage, resulting in impacted performance. Versions 22.2.7 and 23.0.4 contain a fix for this issue. There are currently no known workarounds available.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
before 22.2.7; after 23.0.0 before 23.0.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-29243
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-29243
Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-7cwm-qph5-4h5w
Patch
https://github.com/nextcloud/server/pull/31658
Third Party Advisory
https://hackerone.com/reports/1153138
Third Party Advisory
https://security.gentoo.org/glsa/202208-17
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